Please file a lost report with animal control (controls if near county lines). Leave a flyer with pic also. Check shelter in person every 3 days. (Staff are overworked and you cannot expect them to match up, they are only required to hold 3 days).
If your pet is chipped contact the company to make sure your contact info is current--and let them know pet is missing.
Put up flyers/posters in the area.
Post on Nextdoor.com
Put out scent items, hang at least one up to carry the seent.
More tips on the Facebook page below--post look at other posts there.